Store-front construction.



D. J. MURNANE.

STORE FRONT CONSTRUCTION. APPLICATION FILED JAN.22, 191s. RENEWED MAY 21,1917. 1,236,202

Patented Aug. 7,1917.

3 SHEETS-SHEET 1.

I T I 0. MURNANE. STORE FRONT CONSTRUCTION.

APPLICATION FILED JAN-22,1916- RENEWED MAY 21,19l7.

3 SHEETS-SHEET 2.

Patented Aug. '7, 1917.

a a a? Y l,

J v 1 W 4 J N j 4 7 "I111. LI 1 L 5 m 5 5 i wmh nmwn DANIEL MURNANE, OF CHICAGO HEIGHTS, ILLINOIS, ASSIGNOR TO ZOURI DWN METALfi'OOMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

STORE-FRONT CONSTRUCTION.

Specification of Letters Patent.

Patented Aug. '3, Milt.

Application filed, January 22, 1916, Serial Ito. 73,562. Renewed May 21, 1917. Serial No. 170,085.

To all/whom it may concern:

Be it known that I, DANIEL J. Munxnnn, a citizen of the United States. residing at Chicago Heights, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Store-Front Construction, of which the following is a specification.

My invention relates to constructions for securing in place plate-glass windows of store-fronts. v

In accordance with common practice, such constructions are formed of members which are disposed at opposite sides of the marginal edges of the plates, and" means for drawing these members together to hold the glass between them; and while it isldesirable that the plates be held securely in position, care must be observed. in tighteningv the securing means, that undue pressure is not exerted, which would cause breakage of the glass.

As platelass settings are commonly provided, the a ove mentioned danger of breakage ispresent, as the means for drawing the plate-securing members together' are of such construction '21s to enable the operator, even while using ordinary care and without intending to produce damage, to tighten the securing means to such a degree that undue pressure will be exerted against the plates, these means, as commonly provided, being in the form of screw-devices,

which may be operated by any one of a number of different commonly used tools and of difierent. sizes, the most common objection being found in the use of screwdrivers, pliers and wrenches by which widely varying degrees of force may be exerted on the tightening screws. 1

My object is to overcome the above stated objections and provide means for the tight ening of the plate-securing means of such construction that the operator cannot unconsciously apply tothe securing means aforce sufiiciently eat to injure the glass.

Figure 1 of ti e drawings shows, by a broken sectional view, the sash-bar portion of a store-front constructed in accordance with my jinvention. Fig. 2 'is a similar viewof a division-barof the store-front. Fig. 3'

is a similar view of a corner-bar of the storefront, these three views taken together showing in section a store-flout, with the sashthe direction of the arrow. Fig. 6 is a section taken at the line 6 on Fig. 5 and viewedin the direction of the arrow. Fig. 7 is an enlarged view in elevation of the tightening screw of the plate-clamp securing means, the division-bar and bushing employed being shownin section; Fig. 8 is a perspective view of the screw of Fig.. 7 and a key for actuating it;'Fig. 9 is a view similar to Fig. 5, showing a modification of the invention as applied to a construction involving a bolt-operated draw-plate; Fig. 10 is a view similar to Fig. 9 of another modification; Fig. 11 is an enlarged view in section of the rear end of the structure shown in Fig. 10; Fig. 12 is an end view of the nut employed in the construction illustrated in Figs. 10 and 11; and Fig. 13, a view like Fig. 11, of still another modification.

Referring particularly to Figs. 1, 2 and 3, these views show applications of my inven tion in one of the many forms in which it may be provided, to constructions of sashbar, division-bar and corner-bar, respectively, of the solid type. Fig. 1 is illustrative of the application of my invention to sash-bars of window -constructions which are positioned about the marginal edges of the window opening; a sash-bar construc- The wall of the opening defining the window is represented at 9, the part represented at '9 being either the wall proper of the building, vor the upright member of a win dow-frame secured to the wall. Secured to the member 9, in any suitablei rnanner, is a bar 10 provided with a fqrwardly extending flange 11 ofi'set fromf'the member 9 and {Forming the rear seat for a pane of glass 12.

Located 111 front of the member 10, is a bar 13hav1ng a rearwardly extending flange 11 offset relative to the member 9 and adapted shown, comprises screws 15, one only of which is shown, which pass through openings 16 m the bar 10, arranged at intervals along the bar, and screw at their forward the headed ends. 18 of sion-bar,

threaded ends 17 into the bar 13, the headed ends 18 of the screws engaging the bars 10 as represented. The rear side of the bar 10- grooved longitudinally thereof, as represented-at 19, to such a depth as will cause the outer ends of the screws 15 not to extend beyond the face of the bar 10, and preferably short thereof, as represented, whereby the screws extend wholly within the confines of the groove. Furthermore, in carrying out my invention, the outer ends of the heads .18 are so formed as to require a key of special. shape to operate them, as, for example, instead of providing a slot extending completely across the head of each bolt I form each head with angular-1y disposed sides, the head shown being square, as represented at 20, which requires that a socket-wrench of a particular size and shape to fit the square ends of the heads 20, be used for turning the screws 15. The key used for turning the screws 15 must not only be of such form as to fit the heads of the screws, but it must also be of a width permitting it to enter the groove 19, as will be manifest from the drawings and the foregoing description.

In the construction illustrated in 'Fig. 2 my invention is shown as applied to a diviwhich, in the construction shown, is interposed between the pane 12. and an adjacent pane 21 alining therewith. In this construction the body portion of the division-bar is represented at 22; edge being recessed as represented at 23 to afford seats 24 and 25 for the adjacent marginal edges of the panes 12 and 21. The panes 12 and 21 are held in the desired clamping engagement against the divisionbar 22 by means of a bar 26 applied against the outer surfaces of these panes and. engaging the latter at seats 27 and 28, respectively. The particular construction of bar 26, as shown, employs a plate!!! confined in the interior of the bar 26 and engaging at'intervals with the heads 30 of screws 31 which may pass through corset-eye openings the bar 22, and carry nuts ginal edges of the panes by theheaded ends 47 its forward (not shown) in the plate 29 and which pass through openings 32in the body portion of 33 at their outer scre\\-'-tln-eadcd ends 34f The forward ends of the screws 31 are preferably flattened, as represented at 35, whereby these screws can- .not turn in the plate 2!. The nuts 33'are headed, as illustrated, whereby the screwing up of the nuts will cause the bars 20 to be drawn into clamping engagemein with. the panes 12and 21. The rear side of the bar 22 is grooved at 36, as described of the bar 10, and the proportions of the parts just described are such that when each nut 33 is screwed on to the screw 31 sufficiently far to produce the clamping referred to, the outer quared end 37 of the screw 31 will not extend beyond the rear side of the division-bar 22 and preferably be countersunk relative thereto, as represented, whereby a key havi ng certain proportions and of a particular shape is required to be used to tighten the nut 37. Fig. 3illustrates the application of my invention to a corner-bar wherein the body portion of the bar is illustrated-at 38, this bar being provided with seating surfaces 39 and 40 for the adjacent edges of the pane 21 and apane 41 arranged at angles to the latter. The panes 21 the bar 38 by means of a clamp device 42 formed of a strip 43 having flanges -11 and 15 which bear against the adjacent mar- 21 and 41, and a comparatively rigid bar 46 confined in the and 41 are held against strip 43. The bar 416, at intervals, Is engaged of screws 48 constructedas explained of the screws 31 and carrying nuts 19 of the same construction as the nuts 33 and screwing upon the outer ends of the screws 18, as explained of the nuts 33, the rear face of. the bar 38 b ing grooved, as represented at 50, and each nut 49 being positioned relative to this groove, as explained of the construction illustrated in Fig. 2, requiring a particular form of key to turn the nuts 4:9 to produce the desired clamping of the panes 21 and 41 at the corner of the window construction. The bars 10, 22 and 38 maybe of any desirable material or form of construction. In the construction illustrated they are of the solid type, either of wood or metal, but it will be readily understood 'th-at the in vention is equally applicable to construetions wherein these bars are of hollow construction, and that the form of construction of the outer members which cooperate with these bars for clamping the panes of glass in position is also immaterial. Furthermore, if desired,. the recesses into-which the headed ends of the screws 15, or the nuts on the screws 31 and 48 extend, mav be formed by countersinking the bars adjacent to each Screw or nut, instead of providing continu- 'ticnlar construction of division-bar illus trated comprises a stationary member 53 of general U-shape open at its front side and carrying a seating strip 54 extending lengthwise of the member 53 and interlocking with flanges 55 on the latter, the strip 54 serving as a seat for the'plates 51 at their marginal edges: a movable member, or drawing-plate 56, likewise extending from the top to the bottom of the window and over-lapping the outer sides of the marginal edges of the.

plates 51, and means for drawing the plate 56 toward the member 53 with the desired pressure for clamping the plates 51 between the plate 56 and the seats afforded by the strip 54.. These clamping means are formed of a rearwardly-extending clamping-bar 57 extending through the space between the plates 51 and an opening 58 in the plate 54 and forms; with an inclined cam-surface 59; and a screw 60 having a beveled end 61 adapted to bear against the cam-surface 59 and draw the plates'57 and 56 rearwardly for clamping the plates 51, as stated. The screw 60 is located in a bushing 60 confined in an opening 62 in a side wall of the member 52, the screw engaging at its inner threaded end 63 with threads 64 on the ir. terior of the bushing, whereby rotation of the screw 60 will cause it to move longitudinally in a direction'dependin on the direction in which it is rotated. he outer end of the bushing60 is countersunk, asrepresentedat 65, and the screw 60 is of such length that when in engagement with the cam-surface 59, its head, represented at 66,

extends intothe countersunk portion 65 of a the bushing. In this construction, as in the construction of the preceding figures, the screw is adapted to be tightened up for 7 clamping the panes 51 in place, only by the use of a special key which must fit the opening and operatively engage the head of the. screw. The head of the screw 60 may beof any desirable shape, provided it requires a special'key to operate it. It may be angle-shape, as explained of the screw, 15

or nuts 33 and 49, or it may be formed as' shown in Figs. 4, 7 and 8, namely, by providing in the headed end thereof two alining slots 67 with a web 68 between them, which requires that a key, having lugs adapted to fit these slots,-be provided for turning the screw, such a key beingj shown in Fig. 8 and having lugs 69 suitable for this purpose, it

being understood that this key must be of such size that it will enter the recess 65.

In the construction illustrated in Fig. 9, l have shown my invention applied to a con strnction wherein, instead of employing the draw-baiand screw, as explained of the construction of Fig. 5, the plate 56 engages at a threaded opening 70 therein, with the threaded end 71 of a rearwardly-extending draw-bolt 72, the threaded end of which extends into a bushing 73. of the same construction as the bushing 66 and confined in an opening 74 in the rear Wall of the member 53, the head of this bolt fitting into a counter-sunk portion 75 of the bushing '73 and formed with two slots 76 as explained of the screw 60 and requiring for its operation to draw the plate 56 toward the plate 53, a tool like that shown in 8.

The-construction illustrated in Figs. 10, 11 and '12 is the same as that shown in Fig; 9, except that the draw-bolt, represented at 77, is rigidly held to the plate 56 against rotation and extends at its threaded rear end into the bushing 73, where it engages, a round nut 78 in the countersunk end of the bushing 73 and bears against a shoulder 79 1n the bushing, the face of the nut 78 contaming spaced slots 80, as explained of the heads of the screws 60 of the construction of Fig. 5, thus requiring, for its operation,

to draw the plate 56 toward the plate 54, a tool like that shown in Fig. 8.

In the construction shown in Fig. 13, the I bushing is omitted and in its place the desired coimtersinking of the part to be opera-ted to actuate the clamping plate, in this manufacturer, by determining the amount of force which may safely be exerted against the panes in the clamping operation, may make the key, as, for example, the key shown in Fig. 8, or the socket-key hereinbefore referred to, or, in fact, any form of key which 15 required to be used on account of the shape of the head of the actuating mecha-* .nism, of such construction, that the operatpr cannot unconsciously apply a force, in t ghtening up the clampingdevice, Sufimeat to break the glass.

' It may be said of the construction illustrated 'in Figs. 4 to 7 inclusive, that the bushing 60, where the screw 60 is used, also serves to afiord to the screw a bearing of greater length than is possible where the screw ismounted directly in the wall of the 136 member 52 when the latter is made of relatively thin metal, as isusually the practice, and thus springing of the screw is a oided.

While I have shown my invention as applied to certain particular constructions, I

do not wish to be understood as intending to limit it thereto, as it is applicable to many other forms of constructions and variations in the structures shown.

What I claim as new and desire to secure by Letters Patent is:

In store-front construction, the combination with a pane of glass, of clamping means fOlSilld pane comprising cooperating clamping elements and means for actuating 1. 

